Needle-bar for sewing-machines



(No Model.) 4

Y s. H. WHEELER. NEEDLE BAR EUR SEWING MACHINES. No. 527,915. Patentedoct. 23,1894,

w ses. wvfw/z SAMUEL II. WHEELER, OF CHICAGO, ILLINOIS, ASSIGNOR TO THEWHEELER da WILSON MANUFACTURING COMPANY, OE BRIDGEPORT, CONNECTICUT.

NEEDLE-BAR FOR` SEWING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 527,915, dated October23, 1894.

Application i'iled February 23,1894. Serial No. 501,277. (No model.)

To all whom, it may concern'.-

Be it known that I, SAMUEL H. WHEELER, of Chicago, Cook county, State ofIllinois, have invented an Improvement in Needle-Bars, of which thefollowing description, in connec tion with the accompanying drawings, isa specication, like letters on the drawings representing like parts.

Ordinarily the needle-bars in sewing machines are provided at theirlower ends with a cylindrical bore for the reception of the cylindricalshank or upper end of the needle, the latter when the eye of the needlehas been brought at the proper distance from the end of the needle-barand when made to face in the proper direction being held in place `bymeans of a set screw screwed into said needle-bar through a tapped holeso as to meet the shank of the needle.

In some sewing machines the shank of the needle has been flattened orslabbed off at one side to facilitate putting the eye of the needle injust the right direction.

I have aimed in my invention to provide a needle bar adapted to receiveeither the round shank or a flattened or slabbed shank of a needlewhichever form of needle is to be used or is on hand to be used.

The particular features in which my invention consists will behereinafter described and designated in the claims.

Figure l represents part of a needle-bar with its lower end broken outto show a needle held therein in accordance with my invention, and Fig.2 is a section in the line w, looking up.

The needle-bar A, of any usual shape, is provided at its lower end witha cylindrical bore a, to receive the shank n ofthe needle n.

One part or side of the shank of the needle shown in the drawings isflattened or slabbed off as indicated, and to provide for using such aneedle and enable it to be put unerringly in the bore a., I haveprovided said bar with an adjustable abutment e, herein shown as ascrew, entering said bore, but the` needle is confined in the bore ofsaid bar by a set screw f having preferably a milled head. Now in caseit is desired to use a round shanked needle for some reason, then theoperator by a suitable screw-driver or otherwise, will retract theabutment e from the cylindrical bore, thus leaving a circular openingfor the shank of the needle.

It will be noticed that the abutment when In this invention the needleis held in the bore of the barby only the pressure of the screw j'bearing directly against one side of the needle shank in said bore, andthe adjustable abutment entering said bore may be readily adjusted tocontract the effective diameter of the bore and constitute a properpositioning device or guide for the needle used, and all collars orloose blocks held in place by screws are obviated, the fewer the partsand the less number of screws to be moved in securing a 7o needle inplace the better.

Having described my invention, what I claim as new` and desire to secureby Letters Patent, is-

l. A needle bar having at its lower end a longitudinal round bore toreceive the shank of a needle, and an adjustable abutment located withinsaid round bore at one side thereof, said abutment constituting an adjustable bearing for a attened partof the shank of the needle, combinedwith a set screw screwed into the said bar and entering said round boreand acting against the shank of said needle to operate, substantially asdescribed.

2. A needle bar having at its lower end a longitudinal round bore tereceive the shank of a needle, and an adjustable threaded abutmentlocated within said round bore at one side thereof, said abutmentconstituting an 9o adjustable bearing for a flattened part of the shankof the needle, combined with a set screw screwed into said bar andentering said round bore at a point above and close to said abutment andacting against the shank of said needle to operate, substantially asdescribed.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

SAMUEL H. WHEELER.

`Witnesses:

ISAAC HOLDEN, A. E. PORTER.

